What is the name of this kind of "hand screw?

[Rallendk]

Hey there.

English isn't my native language, so I need a little bit help finding the name of the "hand screw" thingy that fastens this rod holder:

 

[Knot Waiting]

Re: What is the name of this kind of "hand screw?

Usually called Thumb Screws: Thumb Screws | Fastenal

 

[nwcove]

Re: What is the name of this kind of "hand screw?

on the left ..as knot said....is a thumb screw, and on the right is a wing nut.